CN101374016A - Synchronization method for mobile communication system and method for distributing frequency resource - Google Patents
Synchronization method for mobile communication system and method for distributing frequency resource Download PDFInfo
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- CN101374016A CN101374016A CNA200710143012XA CN200710143012A CN101374016A CN 101374016 A CN101374016 A CN 101374016A CN A200710143012X A CNA200710143012X A CN A200710143012XA CN 200710143012 A CN200710143012 A CN 200710143012A CN 101374016 A CN101374016 A CN 101374016A
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Abstract
The invention provides a synchronizing method in a mobile communication system and a method for allocating frequency resources, which are suitable for systems with ultra-large bandwidth or variable bandwidth. The method for allocating frequency resources comprises: a base station sets frequency hopping points according to the access capacity of terminals; and after accessing the terminals, the base station allocates a mid-range frequency channel to a part of terminals and allocates other frequency channels to the rest terminals. The synchronizing method comprises: allocating frequency resources; polling frequency hopping points by the base station according to time intervals after the terminals and the base station start data transmission; carrying out synchronization by the terminals which are allocated with the mid-range frequency channel through receiving a common control channel of the base station; and carrying out synchronization by the terminals which are allocated with other frequency channels when being polled by the base striation. The technical proposal provided in the invention can make full use of system bandwidth, and maximally satisfy the synchronization requirements of terminals with the least resource consumption.
Description
Technical field
The present invention relates to mobile communication system, relate in particular to the method for synchronous in a kind of wide-band mobile communication system and the method for dividing frequency resource.
Background technology
4G (the 4th third-generation mobile communication) system has very high spectrum efficiency than 3-G (Generation Three mobile communication system), and the target of 4G system is to make the mobile user data transmission rate reach 100Mbit/s before 2010, and the stationary user message transmission rate reaches 1Gbit/s.
The bandwidth of 4G wireless communication system can be up to 100MHz, and adaptive-bandwidth, makes things convenient for the 4G system whole-network that the system bandwidth of each sub-district is set flexibly according to business demand.Usually, Common Control Channel (comprising synchronous channel SCH, broadcast channel BCH etc.) is arranged on the center frequency range of system, and as shown in Figure 1, promptly the center frequency point of Common Control Channel overlaps with the center frequency point of system.But, because the bandwidth (be the access capability of terminal, also can abbreviate terminal capability as) of terminal UE is not more than 20M usually at present, if terminal works in the high band or the low-frequency range of base station, then can not receive the Common Control Channel of base station; And if terminal all is operated in the center frequency range of base station, can cause the bandwidth resources waste of base station so.
Summary of the invention
At above deficiency, the technical problem to be solved in the present invention provides the method for synchronous in a kind of mobile communication system and the method for dividing frequency resource, provides a kind of and carry out synchronous feasible scheme to inserting terminal distribution working frequency range and later stage in super large bandwidth system or variable band width system.
In order to solve the problems of the technologies described above, the invention provides the method for dividing frequency resource in a kind of mobile communication system, be applicable to super large bandwidth or variable band width system, it is characterized in that, comprising:
A, base station are provided with the frequency hopping point according to the access capability of terminal;
After b, terminal inserted, the base station was a part terminal distribution center frequency range, is other frequency range of all the other terminal distribution.
Further, among the described step a, the base station is provided with the frequency hopping point according to the access capability of terminal and is meant: the base station is provided with a frequency hopping point at interval every certain frequency about the system centre frequency; Described certain frequency interval is more than or equal to the access capability of terminal.
Further, among the described step b:
The base station is that frequency range base station, part terminal distribution center is meant: distribute in the frequency range of this part terminal and comprise described system centre frequency;
The base station is meant for other frequency range of all the other terminal distribution: distribute in the frequency range of described all the other terminals and comprise certain system hops point.
Further, among the described step b:
The base station is that frequency range base station, part terminal distribution center is meant: the center frequency point of distributing to the frequency range of this part terminal overlaps with the system centre frequency;
The base station is meant for other frequency range of all the other terminal distribution: the center frequency point of distributing to the frequency range of described all the other terminals overlaps with certain system hops point.
Further, among the described step b, the base station is combined into the distribution of line frequency resource according to one in the following condition or its: the translational speed of terminal or terminal are to the requirement of communication quality or the access order or the terminal access capability of terminal iidentification or terminal.
The present invention also provides the method for synchronous in a kind of mobile communication system, is applicable to super large bandwidth or variable band width system, it is characterized in that, comprising:
A, base station are provided with the frequency hopping point according to the access capability of terminal, and the time interval of each frequency hopping point of poll is set;
After B, terminal inserted, the base station was a part terminal distribution center frequency range, is other frequency range of all the other terminal distribution;
After beginning to transmit data between C, terminal and base station, the base station is by each frequency hopping point of described time interval poll;
The terminal that is assigned to the center frequency range is undertaken synchronously by the Common Control Channel that receives the base station;
The terminal that is assigned to other frequency range is being carried out when being polled to by the base station synchronously.
Further, in the described steps A: the base station is provided with the frequency hopping point according to the access capability of terminal and is meant: the base station is provided with a frequency hopping point at interval every certain frequency about the system centre frequency; Described certain frequency interval is more than or equal to the access capability of terminal.
Further, among the described step B:
The base station is that frequency range base station, part terminal distribution center is meant: distribute in the frequency range of this part terminal and comprise described system centre frequency;
The base station is meant for other frequency range of all the other terminal distribution: distribute in the frequency range of described all the other terminals and comprise certain system hops point;
The terminal that is assigned to other frequency range among the described step C is polled to by the base station and is meant: the frequency hopping point that comprises in its work place frequency range is polled to by the base station.
Further, among the described step B:
The base station is that frequency range base station, part terminal distribution center is meant: the center frequency point of distributing to the frequency range of this part terminal overlaps with the system centre frequency;
The base station is meant for other frequency range of all the other terminal distribution: the center frequency point of distributing to the frequency range of described all the other terminals overlaps with certain system hops point;
The terminal that is assigned to other frequency range among the described step C is polled to by the base station and is meant: the center frequency point of its work place frequency range is polled to by the base station.
Further, among the described step B, the base station is combined into the distribution of line frequency resource according to one in the following condition or its: the translational speed of terminal or terminal are to the requirement of communication quality or the access order or the terminal access capability of terminal iidentification or terminal.
Further, in the described steps A: the described time interval is the integral multiple of frame synchronization time, and its multiple is more than or equal to 1.
Further, among the described step C: the terminal that is assigned to other frequency range is kept and base station synchronization when polled when not having; The described method of keeping with base station synchronization comprises at least by common reference symbol to be kept synchronously.
Further, among the described step C: if be assigned to the terminal step-out of other frequency range, then when this frequency hopping point is waited for next time and is polled to, carry out synchronously, perhaps rebound center frequency point again synchronously the back continue step C.
After having adopted technical scheme of the present invention, can make full use of system bandwidth, under the situation that resource is saved most, satisfy the synchronous needs of terminal to greatest extent.
Description of drawings
Fig. 1 is the synchronous channel position schematic diagram with system of different bandwidth;
Fig. 2 is the concrete implementing procedure figure of the method for synchronous in the mobile communication system of the present invention;
Fig. 3 is to be the schematic diagram of terminal distribution frequency resource among the present invention.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
The invention provides the method for synchronous in a kind of mobile communication system, be applicable to super large bandwidth or variable band width system, the same prior art of described super large bandwidth notion; As shown in Figure 2, may further comprise the steps:
(1) base station is provided with the frequency hopping point according to the access capability of terminal, and the time interval of each frequency hopping point of poll can also be set; The described time interval can be provided with according to actual needs, and such as can be according to the translational speed setting of terminal, translational speed is fast more then to be provided with shortly more.
The frequency interval of described frequency hopping point is more than or equal to the access capability of terminal in the native system; If there is the terminal of different access capabilities, then the terminal access capability with maximum is as the criterion, or is as the criterion with the access capability of the terminal that is in the great majority.
Access capability such as most of terminals is 20M, then in the frequency range of base station, with the center frequency point of base station as datum mark, about every 20M or the frequency span bigger a frequency hopping point is set than 20M.For example: when the UE ability is 20M, be the situation of 40M for system bandwidth, the system centre frequency at the 40M center, frequency hopping point is at 20M place, the center frequency point left and right sides; And for the system bandwidth of 60M, then the system centre frequency divides three sections 20M at the 60M center, and the frequency hopping point can be arranged on about center frequency point every the 20M place, arrives different system bandwidth and UE bandwidth by that analogy.
(2) starting up of terminal carries out initial synchronisation, the downlink synchronous signal SCH in system centre frequency search Common Control Channel, and back demodulation broadcast message BCH carries out up access synchronously.
(3) base station is the terminal distribution frequency resource that is inserted, and is the frequency range at its work place of distribution that accesses terminal.
The frequency resource of being distributed comprises two kinds: center frequency range and other frequency range; Described center frequency range is that its center frequency point is the frequency range of system centre frequency; Described other frequency ranges are that its center frequency point is the frequency range of system hops point.
As shown in Figure 3, the base station is a part terminal distribution center frequency range, is other frequency range of all the other terminal distribution.
For part terminal distribution center frequency range is meant: distribute in the frequency range of this part terminal and comprise described system centre frequency; Prioritization scheme is that the center frequency point of distributing to the frequency range of this part terminal overlaps with the system centre frequency.
For other frequency range of all the other terminal distribution is meant: distribute in the frequency range of described all the other terminals and comprise described system hops point; Prioritization scheme is that the center frequency point of distributing to the frequency range of described all the other terminals overlaps with certain frequency hopping point of system.
The distribution of carrying out frequency resource can be made up according to one in the following condition or its in the base station: the translational speed of terminal, terminal are to the access order of the requirement of communication quality, terminal iidentification, terminal, terminal access capability etc.Such as, can be high-speed terminal distributing center frequency range, and give other frequency range of all the other terminal distribution; The definition of described high-speed terminal is with the generally understanding of this area.The purpose of doing like this is for high-speed terminal can be realized better synchronously, and make full use of bandwidth resources, because non-high-speed terminal is not easy to occur deviation of signal, after being assigned to these terminals on other frequency range, even it is one subsynchronous that a period of time just carries out, the step-out phenomenon can not appear substantially yet; And for high-speed terminal, then make its frame by frame synchronization timing receive synchronizing signal, with the reliability that guarantees that it is synchronous.In actual applications, different allocation strategies can be set according to actual needs, such as Random assignment.
Step (1) to (3) also is the method for dividing frequency resource in a kind of mobile communication system provided by the present invention simultaneously.
(4) begin to transmit data between terminal and base station after, the base station is by each frequency hopping point of described time interval poll, described poll frequency hopping point is meant: send synchronizing signal by the described time interval on frequency hopping point, the described time interval is the integral multiple of frame synchronization time, and this multiple is the integer more than or equal to 1.
The terminal that is assigned to the center frequency range is undertaken carrying out the same prior art of synchronous method synchronously by the synchronizing signal in the Common Control Channel that receives the base station.
Be assigned to the terminal of other frequency range, when the frequency hopping point that comprises in its work place frequency range is polled to by the base station, carry out synchronously, carry out the same prior art of synchronous method according to the synchronizing signal that the base station sent; Do not having when polled, terminal is kept and base station synchronization by common reference symbol and other supplementary means, keeps the same prior art of synchronous method; If step-out can be carried out synchronously when this frequency hopping point is waited for next time and is polled to, but also rebound system centre frequency again synchronously the back continue step (4).
When all terminals all have relatively high expectations synchronous the time, can allow each frequency hopping press frame synchronization and regularly receive synchronizing signal, the multiple that is about to the described frame synchronization time is taken as 1, and the base station sends synchronizing signal at each frequency hopping point when center frequency point sends synchronizing signal so.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (13)
1. the method for dividing frequency resource in the mobile communication system is applicable to super large bandwidth or variable band width system, it is characterized in that, comprising:
A, base station are provided with the frequency hopping point according to the access capability of terminal;
After b, terminal inserted, the base station was a part terminal distribution center frequency range, is other frequency range of all the other terminal distribution.
2. the method for claim 1 is characterized in that, among the described step a, the base station is provided with the frequency hopping point according to the access capability of terminal and is meant: the base station is provided with a frequency hopping point at interval every certain frequency about the system centre frequency; Described certain frequency interval is more than or equal to the access capability of terminal.
3. the method for claim 1 is characterized in that, among the described step b:
The base station is that frequency range base station, part terminal distribution center is meant: distribute in the frequency range of this part terminal and comprise described system centre frequency;
The base station is meant for other frequency range of all the other terminal distribution: distribute in the frequency range of described all the other terminals and comprise certain system hops point.
4. the method for claim 1 is characterized in that, among the described step b:
The base station is that frequency range base station, part terminal distribution center is meant: the center frequency point of distributing to the frequency range of this part terminal overlaps with the system centre frequency;
The base station is meant for other frequency range of all the other terminal distribution: the center frequency point of distributing to the frequency range of described all the other terminals overlaps with certain system hops point.
5. the method for claim 1, it is characterized in that, among the described step b, the base station is combined into the distribution of line frequency resource according to one in the following condition or its: the translational speed of terminal or terminal are to the requirement of communication quality or the access order or the terminal access capability of terminal iidentification or terminal.
6. the method for synchronous in the mobile communication system is applicable to super large bandwidth or variable band width system, it is characterized in that, comprising:
A, base station are provided with the frequency hopping point according to the access capability of terminal, and the time interval of each frequency hopping point of poll is set;
After B, terminal inserted, the base station was a part terminal distribution center frequency range, is other frequency range of all the other terminal distribution;
After beginning to transmit data between C, terminal and base station, the base station is by each frequency hopping point of described time interval poll;
The terminal that is assigned to the center frequency range is undertaken synchronously by the Common Control Channel that receives the base station;
The terminal that is assigned to other frequency range is being carried out when being polled to by the base station synchronously.
7. method for synchronous as claimed in claim 6 is characterized in that, in the described steps A: the base station is provided with the frequency hopping point according to the access capability of terminal and is meant: the base station is provided with a frequency hopping point at interval every certain frequency about the system centre frequency; Described certain frequency interval is more than or equal to the access capability of terminal.
8. method for synchronous as claimed in claim 6 is characterized in that, among the described step B:
The base station is that frequency range base station, part terminal distribution center is meant: distribute in the frequency range of this part terminal and comprise described system centre frequency;
The base station is meant for other frequency range of all the other terminal distribution: distribute in the frequency range of described all the other terminals and comprise certain system hops point;
The terminal that is assigned to other frequency range among the described step C is polled to by the base station and is meant: the frequency hopping point that comprises in its work place frequency range is polled to by the base station.
9. method for synchronous as claimed in claim 6 is characterized in that, among the described step B:
The base station is that frequency range base station, part terminal distribution center is meant: the center frequency point of distributing to the frequency range of this part terminal overlaps with the system centre frequency;
The base station is meant for other frequency range of all the other terminal distribution: the center frequency point of distributing to the frequency range of described all the other terminals overlaps with certain system hops point;
The terminal that is assigned to other frequency range among the described step C is polled to by the base station and is meant: the center frequency point of its work place frequency range is polled to by the base station.
10. method for synchronous as claimed in claim 6, it is characterized in that, among the described step B, the base station is combined into the distribution of line frequency resource according to one in the following condition or its: the translational speed of terminal or terminal are to the requirement of communication quality or the access order or the terminal access capability of terminal iidentification or terminal.
11. method for synchronous as claimed in claim 6 is characterized in that, in the described steps A: the described time interval is the integral multiple of frame synchronization time, and its multiple is more than or equal to 1.
12. method for synchronous as claimed in claim 6 is characterized in that, among the described step C: the terminal that is assigned to other frequency range is kept and base station synchronization when polled when not having; The described method of keeping with base station synchronization comprises at least by common reference symbol to be kept synchronously.
13. method for synchronous as claimed in claim 6 is characterized in that, among the described step C: if be assigned to the terminal step-out of other frequency range, then when this frequency hopping point is waited for next time and is polled to, carry out synchronously, perhaps rebound center frequency point again synchronously the back continue step C.
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| CN200710143012A CN101374016B (en) | 2007-08-20 | 2007-08-20 | Synchronization method for mobile communication system and method for distributing frequency resource |
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| CN200710143012A CN101374016B (en) | 2007-08-20 | 2007-08-20 | Synchronization method for mobile communication system and method for distributing frequency resource |
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| CN101374016B CN101374016B (en) | 2012-10-10 |
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| CN102209329A (en) * | 2011-05-17 | 2011-10-05 | 深圳国威电子有限公司 | Multi-base-station anti-jamming method based on cordless telephone system |
| WO2016119131A1 (en) * | 2015-01-27 | 2016-08-04 | 华为技术有限公司 | Method and apparatus for transmitting public information |
| CN106792719A (en) * | 2016-04-01 | 2017-05-31 | 北京展讯高科通信技术有限公司 | Eat dishes without rice or wine frame structure framework and its collocation method, base station |
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| CN110248405A (en) * | 2014-03-21 | 2019-09-17 | 华为技术有限公司 | A kind of method and apparatus configuring frequency resource position |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6011786A (en) * | 1997-06-06 | 2000-01-04 | Ericsson Inc. | Systems and methods for control channel communication in cellular radiotelephone systems |
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| CN102209329B (en) * | 2011-05-17 | 2013-12-25 | 深圳国威电子有限公司 | Multi-base-station anti-jamming method based on cordless telephone system |
| CN102209329A (en) * | 2011-05-17 | 2011-10-05 | 深圳国威电子有限公司 | Multi-base-station anti-jamming method based on cordless telephone system |
| CN110248405A (en) * | 2014-03-21 | 2019-09-17 | 华为技术有限公司 | A kind of method and apparatus configuring frequency resource position |
| WO2016119131A1 (en) * | 2015-01-27 | 2016-08-04 | 华为技术有限公司 | Method and apparatus for transmitting public information |
| CN106664691A (en) * | 2015-01-27 | 2017-05-10 | 华为技术有限公司 | Method and apparatus for transmitting public information |
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| US10420106B2 (en) | 2015-01-27 | 2019-09-17 | Huawei Technologies Co., Ltd. | Common information transmission method and apparatus |
| CN106792719A (en) * | 2016-04-01 | 2017-05-31 | 北京展讯高科通信技术有限公司 | Eat dishes without rice or wine frame structure framework and its collocation method, base station |
| CN106792719B (en) * | 2016-04-01 | 2020-03-20 | 北京展讯高科通信技术有限公司 | Air interface frame structure frame and configuration method thereof, and base station |
| CN108632908A (en) * | 2017-03-24 | 2018-10-09 | 展讯通信（上海）有限公司 | A kind of fractional bandwidth radio transmitting method, device, base station and user equipment |
| CN108632908B (en) * | 2017-03-24 | 2021-10-26 | 展讯通信（上海）有限公司 | Partial bandwidth wireless transmission method, device, base station and user equipment |
| CN108633046A (en) * | 2017-03-24 | 2018-10-09 | 华为技术有限公司 | The method and apparatus for transmitting signal |
| CN108633046B (en) * | 2017-03-24 | 2023-08-22 | 华为技术有限公司 | Method and device for transmitting signals |
| WO2018227622A1 (en) * | 2017-06-16 | 2018-12-20 | Oppo广东移动通信有限公司 | Wireless communication method and device |
| US10925060B2 (en) | 2017-06-16 | 2021-02-16 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless communication method and device |
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| CN109302748A (en) * | 2018-11-15 | 2019-02-01 | 武汉拓宝科技股份有限公司 | A kind of frequency selecting method and communication means of wireless communication system |
| CN109302748B (en) * | 2018-11-15 | 2023-05-12 | 上海道生物联技术有限公司 | Frequency selection method and communication method of wireless communication system |
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